Firefox is still opening files with wrong programs after installing this plugin. For example opening PDFs with Krita or GIMP instead of Okular. I just wanted Firefox to open files as configured in KDE-Plasma. I can manually configure Firefox to use the desired programs for each MIME time but there are several of them, and it does not even show Okular as an option so I have to manually introduce the executable path which in most cases changes between verions (IE a folder with the version number).